The Slim&Clear™ Digital Audio Monitor Set is a wonderful addition to any home and will be perfect for parents who don't want to share. The 2.4 GHz digital technology eliminates interference and provides a secure and private transmission, while the pair of included Parent's Units allow two people to monitor baby at the same time. The digital technology also automatically selects a free and secure channel so you only hear your baby. The unit allows parents to monitor their baby in the nursery from any part of the home within 650 feet. The Parent’s Unit features volume control, visual sound lights, a convenient belt clip and a rechargeable battery.